All the lenses, be they the simple lens that lets you see clearly via your spectacles, or the high-precision lenses that have industrial applications, need customizations to work optimally.
Custom optical lenses help customers customize their lenses to their needs. Changes can be made to the shape, size, curvature, and even the material that makes up the lenses.
Designing As You Will: Customizing Your Lens
Some industrial lens manufacturers are experts in lens modifications and can make changes to individual lenses or to the entire assembly of lenses to optimize their performance in concentrating light, laser cutting, projection use, etc. If you wish to learn more about the type of modifications you can make to lenses to improve their utility, you can read this blog post.
Changing The Thickness Of The Lens
When you have a high-powered spectacle, the lenses are usually very thick, especially at the edges. In case you do not wish to wear spectacles that severely affect your looks, you can ask the optometrist to work on the lens thickness so that you can see clearly despite the thickness being reduced.
Changing The Material Of The Lens
The lens’s material makes a lot of difference from the refractive index. The refractive index determines the extent to which light bends in a medium. So, when light moves from air to water, it bends in a certain direction. However, if light rays were to move from water to mercury, they would bend at a different angle than they would if they were to move from air to water. So, changing the glass material used to make the lens changes the refractive index, which is the optical properties of the optical setup.
Adding Coating And Filters To The Lens
Adding appropriate coating or filters to the external surface of a lens helps cut out certain types of wavelengths from passing through the lens. So, if you want to selectively cut out the UV rays from the entire spectrum of rays, you must add a UV filter. Likewise, you may have to cut out the Infrared rays for certain optical instruments, and in that case, you must use an infrared filter for the lens.
Changing The F Number Of The Lens
The F number of an optics setup depends on the iris, which controls the amount of light that can enter through the aperture (in a typical camera setup). Usually, the F-number is denoted in the front ring of the camera. As a rule of thumb, whenever the F-number changes, it usually happens as a multiple of square root 2 is 1.414.
Final Words
Designing the lens setup for optimum use and improving its utility is achieved by the combined efforts of the lensmaker and the client. So, depending on your specific needs, fine-tune the curvature, the thickness, and the F-number of the lens or lens assembly. Also, work around with the refractive index of the lens or alter its filters to change its optical properties as per your requirement.